On Wed, Oct 27, 2010 at 05:10:51PM +0800, Xiao Guangrong wrote:
> It can help us to see the state of async pf
>
I have patch to add three async pf statistics:
apf_not_present
apf_present
apf_doublefault
But Avi now wants to deprecate debugfs interface completely and move
towards ftrace, so I had to drop it.
> Signed-off-by: Xiao Guangrong <xiaoguangrong@xxxxxxxxxxxxxx>
> ---
> arch/x86/kvm/x86.c | 3 +++
> 1 files changed, 3 insertions(+), 0 deletions(-)
>
> diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
> index c0e7ad0..2dd8059 100644
> --- a/arch/x86/kvm/x86.c
> +++ b/arch/x86/kvm/x86.c
> @@ -88,6 +88,8 @@ static u64 __read_mostly efer_reserved_bits = 0xfffffffffffffffeULL;
>
> #define VM_STAT(x) offsetof(struct kvm, stat.x), KVM_STAT_VM
> #define VCPU_STAT(x) offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU
> +#define VCPU_ASYNC_PF_STAT offsetof(struct kvm_vcpu, async_pf.queued), \
> + KVM_STAT_VCPU
>
> static void update_cr8_intercept(struct kvm_vcpu *vcpu);
> static int kvm_dev_ioctl_get_supported_cpuid(struct kvm_cpuid2 *cpuid,
> @@ -141,6 +143,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
> { "insn_emulation_fail", VCPU_STAT(insn_emulation_fail) },
> { "irq_injections", VCPU_STAT(irq_injections) },
> { "nmi_injections", VCPU_STAT(nmi_injections) },
> + { "async_pf_queued", VCPU_ASYNC_PF_STAT},
> { "mmu_shadow_zapped", VM_STAT(mmu_shadow_zapped) },
> { "mmu_pte_write", VM_STAT(mmu_pte_write) },
> { "mmu_pte_updated", VM_STAT(mmu_pte_updated) },
> --
> 1.7.0.4
>
> --
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--
Gleb.
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